Local weather forecast

Weather in Norristown, PA

Updated 2026-09-26 09:00 local time · ZIP codes 19401, 19403

Light rain
Now53°F

Light rain

High / Low61° / 53°
Rain chance87%
Wind18 mph
Weather alerts

Active alerts

2
Coastal Flood Advisory issued September 25 at 2:34PM EDT until September 27 at 5:00AM EDT by NWS Mount Holly NJ

* WHAT...Up to one foot of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...In New Jersey, Gloucester, Camden and Northwestern Burlington. In Pennsylvania, Delaware, Philadelphia and Lower Bucks. * WHEN...Until 5 AM EDT Sunday. * IMPACTS...At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible. * ADDITIONAL DETAILS...Localized moderate tidal flooding impacts cannot be ruled out.

Safety instructions

A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.

Coastal Flood Advisory issued September 26 at 4:20AM EDT until September 27 at 5:00AM EDT by NWS Mount Holly NJ

* WHAT...Up to one foot of inundation above ground level in low- lying areas near shorelines and tidal waterways. * WHERE...In New Jersey, Gloucester, Camden and Northwestern Burlington. In Pennsylvania, Delaware, Philadelphia and Lower Bucks. * WHEN...Until 5 AM EDT Sunday. * IMPACTS...At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible. * ADDITIONAL DETAILS...Localized moderate tidal flooding impacts cannot be ruled out.

Safety instructions

A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.

Hourly

Next hours

NowLight rain53°82% rain
10 AMLight rain53°79% rain
11 AMModerate rain53°89% rain
12 PMHeavy rain53°94% rain
1 PMModerate rain53°89% rain
2 PMModerate rain53°92% rain
3 PMLight rain54°79% rain
4 PMModerate rain53°87% rain
5 PMLight rain54°78% rain
6 PMModerate rain54°90% rain
7 PMLight rain54°79% rain
8 PMLight rain54°80% rain
Forecast

3-day weather forecast

Today2026-09-26
Light rain
61° 53°Light rain
Rain 87%Gust 18 mph
Tomorrow2026-09-27
Light rain shower
56° 55°Light rain shower
Rain 93%Gust 20 mph
Monday2026-09-28
Light rain shower
59° 55°Light rain shower
Rain 88%Gust 11 mph
Conditions

Weather details

Feels like45°F
Humidity90%
Pressure29.89 inHg
Visibility5 mi
Wind18 mph NNE
Wind gusts40 mph
Precipitation0.09 in
UV index0
Daylight

Sunrise, sunset and moon

Sunrise06:52 AM
Sunset06:52 PM
Moonrise06:41 PM
Moon phaseFull Moon
Next 24 hours

Key weather changes ahead

Warmest hour1 AM · 56°F
Coolest hour12 PM · 53°F
Highest rain chance12 PM · 94%
Strongest gusts9 AM · 40 mph
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 94% over the next 12 hours.

A jacket or sweater is a good idea

It feels like 45°F with winds near 18 mph.

Best window: 7 PM

54°F, 79% rain chance and 15 mph wind.

Use extra caution while driving

Visibility is around 5 mi; gusts may reach 40 mph.

Running conditions are less comfortable

Current temperature is 53°F, wind 18 mph, rain chance up to 94%.

Low UV protection needs

UV index is 0.

Local weather characteristics in Norristown

Pennsylvania has four seasons and varied terrain. Western and northern areas are generally cooler and snowier, while southeastern areas are often milder.

Norristown is part of the Northeast weather region. The forecast point is near 40.12°N latitude and 75.34°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.

Norristown weather today

Light rain and 53°F in Norristown, PA. Today's high is 61°F with a 87% rain chance. Winds are around 18 mph with gusts near 40 mph. Relative humidity is 90%, pressure is 29.89 inHg, and visibility is about 5 miles.

Tonight and tomorrow in Norristown

Sunrise is at 06:52 AM and sunset is at 06:52 PM. Tomorrow's forecast calls for Light rain shower with a high near 56°F and a low near 55°F. The maximum rain chance is 93%.

Nearby

Weather near Norristown

Pennsylvania

Popular cities in Pennsylvania

View state page →